MathsYears 2–3Addition & Subtraction

Use inverse to check

Recognise and use the inverse relationship between addition and subtraction to check calculations and solve missing number problems

What you'll learn

  1. 1

    Checking your answer with the opposite sum is a super trick! 🎩

  2. 2

    Let's check 9 + 6 = 15 using the inverse.

  3. 3

    Check 8 + 5 = 13 by filling the number line backwards.

  4. 4

    Which sum can you use to check 14 – 6 = 8?

Practise Use inverse to check with Whizlo

Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 6–8. Aligned to the UK National Curriculum.

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